Results 31 to 40 of about 202 (125)

Addressing Inherent Challenges to Chemical Relithiation of Cycled End‐of‐Life Cathode Materials

Advanced Energy Materials, Volume 15, Issue 46, December 9, 2025.
The evolution of fluorine surface species is tracked during a low‐temperature redox mediator relithiation process for direct recycling of cycled NMC 622. A washing step is presented as a solution for mediating adverse effects of surface contamination. Redox mediator relithiation is shown to be a rapid, efficient method that can be applied to cycled NMC
Cyrus Kirwa, Evelyna Wang, Seoung‐Bum Son, Juliane Preimesberger, Fulya Dogan Key, Yaocai Bai, Krzysztof Pupek, Hongmei Luo, Matthew Keyser, Jaclyn Coyle   +9 more
wiley   +1 more source

Emerging applications of rare‐earth fluoride nanocrystals in medicine and biotechnologies

Responsive Materials, Volume 3, Issue 4, November 2025.
Rare‐earth fluoride nanocrystals (REFNCs) exhibit high responsivity and can be used as multi‐modal agents in medicine and theranostics. This review summarizes recent advances in REFNCs, covering their synthesis, structures, luminescent properties, and applications in multi‐modal imaging and photodynamic therapy, highlighting their theranostic potential
Alain Tressaud, Zhichao Wang, Yuqi Tang, Quan Li   +3 more
wiley   +1 more source

Proving Optical Anisotropy and Polarization Effects in β‐Ga2O3$\left(\text{Ga}\right)_{2} \left(\text{O}\right)_{3}$ Nanomembranes via X‐Ray Excited Optical Luminescence

Advanced Photonics Research, Volume 6, Issue 10, October 2025.
In this study, the pronounced anisotropy in the optical properties of β‐Ga2O3 nanomembranes has been analized under a synchrotron nanoprobe. We have investigated the site‐specific contributions of distint Ga ions to the emission bands by combining polarization‐dependent X‐ray absorption near‐edge structure and X‐ray excited luminescence.
Paula Pérez‐Peinado, Jaime Dolado, Pedro L. Alcázar Ruano, Daniel Carrasco, Ruth Martínez‐Casado, Valentina Bonino, Gema Martínez‐Criado, Jani Jesenovec, John S. McCloy, Francisco Domínguez‐Adame, Jorge Quereda, Emilio Nogales, Bianchi Méndez   +12 more
wiley   +1 more source

Investigation of X-ray excited optical luminescence properties of Er, Nd-doped YVO4 phosphors using a hard X-ray beam

Optical Materials: X
Scintillators based on YVO4:Er3+ and YVO4:Er3+, Nd3+, synthesized through glucose-assisted sol-gel method and calcined under different temperatures were studied via X-ray excited optical luminescence (XEOL). The samples' crystalline structure was studied
Francisca J.R. Tavares, Matheus S.C. de Oliveira, Ariosvaldo J.S. Silva, Iara de F. Gimenez, Verônica C. Teixeira, Nilson S. Ferreira, Marcos V. dos S. Rezende   +6 more
doaj   +1 more source

Microwave‐Facilitated Sensitization Route Boosting Efficiency, Thermostability, and Multifunction of Nanophosphors

Aggregate, Volume 6, Issue 10, October 2025.
A microwave‐facilitated sensitization engineering is proposed to construct new NSYP:Ce,Tb NPs with less oxygen vacancy, suppressing energy loss of Ce sensitizers and transferring more energy to Tb activators. As a result, the Ce sensitization for Tb achieves ultrahigh ET efficiency (92.6%), contributing to high IQE of 82.2%, along with outstanding ...
Conglin Liu, Yubin Wang, Ran Li, Guanhao Zhou, Asif Ali Haider, Xiaoting Huang, Xiaoyang Zhao, Yue Qin, Hong Li, Hongming Jiang, Junpeng Li, Dandan Gao, Jiyang Xie, Pengfei Zhang, Lei Lei, Jing Zhu   +15 more
wiley   +1 more source

Sputter‐Grown MnBi2Te4 Thin Films: Magnetic Ground States and Phase Control

physica status solidi (RRL) – Rapid Research Letters, Volume 19, Issue 10, October 2025.
Magnetron sputtering enables the growth of smooth MnBi2Te4 thin films with reduced twinning and improved crystallinity. Bibby et al. systematically correlate composition, structure, and magnetic properties, revealing that excess Mn destabilizes the target phase, while even stoichiometric films exhibit suppressed interlayer coupling and weak magnetic ...
Joshua Bibby, Emily Heppell, Jack Bollard, Ethan L. Arnold, Javier Herrero‐Martín, Gerrit van der Laan, Thorsten Hesjedal   +6 more
wiley   +1 more source

β-Ga2O3:Cr nanowires with optical microcavities for determining local heating induced by x-ray nanobeams

APL Materials
This study explores the x-ray excited optical luminescence (XEOL) of optical microcavities fabricated in β-Ga2O3:Cr nanowires (NWs). XEOL measurements reveal prominent luminescence bands in the near ultraviolet-blue (NUV-B) and in the red-near infrared ...
D. Carrasco, J. Dolado, P. Pérez-Peinado, B. Rodríguez, M. Alonso-Orts, J. M. San Juan, M. L. Nó, P. Hidalgo, G. Martínez-Criado, B. Méndez, E. Nogales   +10 more
doaj   +1 more source

Impact of the Annealing Temperature on the Local Se Distribution and Optical Properties in CdSe_{x}Te_{1−x} Solar Cells by Multimodal X-ray Microscopy

PRX Energy
The introduction of Se in CdTe solar-cell absorbers has led to multiple beneficial effects in the devices, including an increased short-circuit current and an extended charge-carrier lifetime. A critical manufacturing step of CdSe_{x}Te_{1−x} solar cells
Jackson L. Barp, Jr., Gero Falkenberg, Giovanni Fevola, Svenja Patjens, Niklas Pyrlik, Sven Hampel, Eric Colegrove, Andrea Mathew, Jan Garrevoet, Gerald Falkenberg, Christian Strelow, Tobias Kipp, Christian G. Schroer, Michael E. Stuckelberger   +13 more
doaj   +1 more source

Origin of the Surface Magnetic Dead Layer in Rare‐Earth Titanates

Advanced Materials Interfaces, Volume 11, Issue 35, December 12, 2024.
DyTiO3 perovskite titanates exhibit ferri‐magnetic ordering. Despite a nominal Ti valence of 3+, surface deviations to a more stable 4+ state disrupt this magnetic behavior for thin films. This valence evolution arises from short‐range ordered interstitial oxygen planes and Ti‐Dy cationic imbalance, inducing sufficient hole doping for a complete Ti4 ...
Raphaël Aeschlimann, Manuel Bibes, Alexandre Gloter   +2 more
wiley   +1 more source

Photodynamic therapy for cancer: mechanisms, photosensitizers, nanocarriers, and clinical studies

MedComm, Volume 5, Issue 7, July 2024.
We highlight the development and molecular mechanisms underlying the activation of photosensitizers, the challenges of PDT in tumor management, and the advantages of nanocarriers‐based PDT against cancer. Abstract Photodynamic therapy (PDT) is a temporally and spatially precisely controllable, noninvasive, and potentially highly efficient method of ...
Wanchen Zhao, Liqing Wang, Meihong Zhang, Zhiqi Liu, Chuanbin Wu, Xin Pan, Zhengwei Huang, Chao Lu, Guilan Quan   +8 more
wiley   +1 more source